a fouled or cracked HVAC flame sensor is a primary culprit for erratic ignition sequences

Its corrosion-resistant properties make it a superior alternative to standard copper in specific gas-heavy environments

ensuring the diaphragm responds correctly to varying electrical signals and gas supply fluctuations

For any professional installation involving fluctuating line pressure

including 433-00-201 and 97N70

System Sensor P2RK Detection Accessory Els PW 17895 a fouled or cracked HVACSystem Sensor P2RK Gas Smoke Detection Accessory, 12 24Vdc Operating Voltage, 2 Wire, Red SpectrAlert Advance Outdoor Wall Mount Horn and Strobe marked with FIRE, Adjustable Standard Candela Setting, and Plastic Weatherproof Back Box